Intro to the Cardiovascular system in health and disease (CVS1) Flashcards Preview

CVS physiology > Intro to the Cardiovascular system in health and disease (CVS1) > Flashcards

Flashcards in Intro to the Cardiovascular system in health and disease (CVS1) Deck (17):
1

components of CVS (cardiovascular system)

heart, arteries, arterioles, capillaries, veins

2

role of heart in CVS

the pump, cardiac output must match needs

3

role of arteries in CVS

passageways of blood from heart to tissues. pressure must be maintained but not too high

4

arterioles

major resistance vessels

5

role of capillaries

site of exchange of gas, nutrients and water between blood and tissues

6

role of veins

capacitance vessels (contain most of blood volume during rest); passageways of blood from tissues to heart. venous return must provide heart with sufficient blood to pump

7

e.g's of diseases of the CVS

arterial disease, venous disease, structural abnormalities of the heart, infections

8

arterial disease

e.g. high blood pressure, coronary/ischaemic heart disease (including heart attacks), stoke, peripheral arterial disease.

9

venous disease

e.g. deep vein thrombosis and pulmonary embolism

10

structural abnormalities of the heart

caused by e.g. ischaemic heart disease, diseases of the heart valves, diseases of the cardiac muscle itself

11

infections of the heart

infective endocarditis (usually affect damaged heart valves), pericarditis, myocarditis

12

two types of risk factors for cardiovascular disease

modifiable and non modifiable

13

modifiable risk factors for cardiovascular disease

-high blood pressure
-dyslipidaemia (disorder of lipoprotein metabolism, including lipoprotein overproduction or deficiency)
-smoking
-diabetes mellitus
-obesity
-dietary factors
-thrombogenic factors(Causing or resulting in thrombosis or coagulation of the blood)
-lack of exercise
-excess alcohol consumption
-stress (?)

14

non modifiable risk factors for cardiovascular disease

-genetic factors
-age
-gender

15

clinical effects of arterial disease (and component of CVS that it effects)

-strokes (cerebral/carotid arteries)
-ischaemic heart disease(coronary arteries)
-claudication(cramping of legs) and gangrene (femoral/lower limb arteries)
-renal failure and hypertension (renal arteries)

16

symptoms of cardiovascular disease

-no symptoms
-sudden death
-chest pain
-shortness of breath
-palpitations
-loss of consciousness
-collapse
-swollen lower limbs
-leg pain

17

commonest cause of death below the age of 75 years/ so called premature mortality

coronary heart disease